* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, #FFF4E6 0%, #FFE5D0 50%, #FFD4B8 100%);
  color: #2C2C2C;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
main {
  flex: 1;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px;
}
.back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #FF7A2E;
  text-decoration: none;
  margin-bottom: 16px;
}
.back:hover { text-decoration: underline; }
.card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
h1 {
  font-size: 24px;
  font-weight: 700;
  color: #1F1F1F;
  margin-bottom: 6px;
  letter-spacing: -0.3px;
}
.meta {
  font-size: 12px;
  color: #999;
  margin-bottom: 4px;
}
.intro {
  font-size: 14px;
  line-height: 1.85;
  color: #444;
  margin-top: 16px;
}
.intro p { margin-bottom: 12px; }
h2 {
  font-size: 17px;
  font-weight: 700;
  color: #FF7A2E;
  margin-top: 28px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #FFE5D0;
}
h3 {
  font-size: 15px;
  font-weight: 600;
  color: #2C2C2C;
  margin-top: 14px;
  margin-bottom: 8px;
}
p {
  font-size: 14px;
  line-height: 1.8;
  color: #444;
  margin-bottom: 12px;
}
ol, ul {
  font-size: 14px;
  line-height: 1.85;
  color: #444;
  padding-left: 24px;
  margin-bottom: 14px;
}
ol li, ul li { margin-bottom: 6px; }
strong { font-weight: 600; color: #2C2C2C; }
a { color: #FF7A2E; text-decoration: none; word-break: break-all; }
a:hover { text-decoration: underline; }
footer {
  text-align: center;
  padding: 24px 16px 32px;
  font-size: 12px;
  color: #999;
  line-height: 1.8;
}
footer a { color: #999; text-decoration: none; }
footer a:hover { color: #FF7A2E; }
@media (max-width: 480px) {
  main { padding: 24px 14px; }
  .card { padding: 24px 18px; }
  h1 { font-size: 20px; }
  h2 { font-size: 16px; }
}